True Humor is Laughter at One's Self

"In the words of a Chinese Zen master, "Nothing is left to you at this
moment but to have a good laugh!" As James Broughton put it:
This is It
and I am It
and You are It
and so is That
and He is It
and She is It
and It is It
and That is That.(4)
True humor is, indeed, laughter at one's Self—at the Divine Comedy,
the fabulous deception, whereby one comes to imagine that a creature
in existence is not also of existence, that what man is is not also what
everything is. All the time we "know it in our bones" but conscious
attention, distracted by details and differences, cannot see the whole for
the parts."

From Alan Watts' The Book